Comment 1 for bug 1309569

I think you're using the wrong command, instead of "apt-add-repository" try "add-apt-repository". Also, if you wouldn't ming, please transition over to the new repository:
sudo add-apt-repository --remove ppa:ehoover/compholio
sudo add-apt-repository ppa:pipelight/stable

The netflix-desktop project is now a part of the "pipelight" project. If you also install pipelight ( http://fds-team.de/cms/pipelight-installation.html#section_1_1 )then netflix-desktop will not need to run all of Firefox in Wine, which generally leads to better video performance.